1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

Base Information

Chemical Name:1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone
CAS No.:1161076-36-3
Molecular Formula:C₂₁H₂₁FN₆O
Molecular Weight:392.436
Hs Code.:

Synonyms:1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

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Chemical Property of 1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

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Technology Process of 1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

There total 6 articles about 1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

: 1161076-33-0
N-cyclopropyl-4-[2-(4-fluorophenyl)-4,5,6,7-tetrahydropyrazolo[1,5-b]pyridazin-3-yl]-2-pyrimidinamine

: 108-24-7
acetic anhydride

: 1161076-36-3
1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

Guidance literature:: With pyridine; dmap; at 20 ℃; for 3h;

Reference yield:

: 474511-91-6
4-[(4-fluorophenyl)ethynyl]-2-(methylthio)pyrimidine

: 1161076-36-3
1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

Guidance literature:: Multi-step reaction with 5 steps

1: 1,3,5-trimethyl-benzene / 18 h / 165 °C

2: 1,3,5-trimethyl-benzene / 4 h / 140 °C

3: chloroform / 1.08 h / 120 - 160 °C / Sealed tube; Microwave irradiation

4: hydrogen / palladium 10% on activated carbon / methanol / 2 h / 20 °C / 750.08 Torr / Inert atmosphere

5: pyridine / dmap / 3 h / 20 °C

With pyridine; hydrogen; dmap; palladium 10% on activated carbon; In methanol; chloroform; 1,3,5-trimethyl-benzene;

Reference yield:

: 766-98-3
1-ethynyl-4-fluorobenzene

: 1161076-36-3
1-[3-[2-(cyclopropylamino)-4-pyrimidinyl]-2-(4-fluorophenyl)-5,6-dihydropyrazolo[1,5-b]pyridazin-7(4H)-yl]ethanone

Guidance literature:: Multi-step reaction with 6 steps

1: triethylamine / copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride / 18 h / 20 °C / Inert atmosphere

2: 1,3,5-trimethyl-benzene / 18 h / 165 °C

3: 1,3,5-trimethyl-benzene / 4 h / 140 °C

4: chloroform / 1.08 h / 120 - 160 °C / Sealed tube; Microwave irradiation

5: hydrogen / palladium 10% on activated carbon / methanol / 2 h / 20 °C / 750.08 Torr / Inert atmosphere

6: pyridine / dmap / 3 h / 20 °C

With pyridine; hydrogen; triethylamine; dmap; bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; palladium 10% on activated carbon; In methanol; chloroform; 1,3,5-trimethyl-benzene;